Book of Common Prayer (page 244)

Holy Cross Day September 14

Almighty God, whose Son our Savior Jesus Christ was lifted
high upon the cross that he might draw the whole world to
himself: Mercifully grant that we, who glory in the mystery
of our redemption, may have grace to take up our cross and
follow him; who lives and reigns with you and the Holy
Spirit, one God, in glory everlasting. Amen.

Preface of Holy Week

Saint Matthew September 21

We thank you, heavenly Father, for the witness of your apostle
and evangelist Matthew to the Gospel of your Son our Savior;
and we pray that, after his example, we may with ready wills
and hearts obey the calling of our Lord to follow him;
through Jesus Christ our Lord, who lives and reigns with you
and the Holy Spirit, one God, now and for ever. Amen.

Preface of the Apostles

Saint Michael and All Angels September 29

Everlasting God, you have ordained and constituted in a
wonderful order the ministries of angels and mortals:
Mercifully grant that, as your holy angels always serve and
worship you in heaven, so by your appointment they may
help and defend us here on earth; through Jesus Christ our
Lord, who lives and reigns with you and the Holy Spirit, one
God, for ever and ever. Amen.

Preface of Trinity Sunday

Saint Luke October 18

Almighty God, who inspired your servant Luke the physician
to set forth in the Gospel the love and healing power of your
Son: Graciously continue in your Church this love and power